const Setting = require('./src/setting.env');

// 拼接路径
const resolve = dir => require('path').join(__dirname, dir);

// 增加环境变量
process.env.VUE_APP_VERSION = require('./package.json').version;
process.env.VUE_APP_BUILD_TIME = require('dayjs')().format('YYYY-M-D HH:mm:ss');

module.exports = {
  // publicPath:'/',
  /**publicPath:Setting.publicPath,
   lintOnSave: Setting.lintOnSave,
   outputDir: Setting.outputDir,
   assetsDir: Setting.assetsDir,**/
  runtimeCompiler: true,
  productionSourceMap: false,
  devServer: {
    // publicPath:'/'
  },
  css: {
    loaderOptions: {
      less: {

      }
    }
  },
  transpileDependencies: ['view-design'],
  // 默认设置: https://github.com/vuejs/vue-cli/tree/dev/packages/@vue/cli-service/lib/config/base.js
  chainWebpack: config => {
    /**
     * 删除懒加载模块的 prefetch preload，降低带宽压力
     * https://cli.vuejs.org/zh/guide/html-and-static-assets.html#prefetch
     * https://cli.vuejs.org/zh/guide/html-and-static-assets.html#preload
     * 而且预渲染时生成的 prefetch 标签是 modern 版本的，低版本浏览器是不需要的
     */
    config.plugins
        .delete('prefetch')
        .delete('preload');
    // 解决 cli3 热更新失效 https://github.com/vuejs/vue-cli/issues/1559
    config.resolve
        .symlinks(true);
    config
        // 开发环境
        .when(process.env.NODE_ENV === 'development',
            // sourcemap不包含列信息
            config => config.devtool('cheap-source-map')
        )
        // 非开发环境
        .when(process.env.NODE_ENV !== 'development', config => {

        });
    // 不编译 iView Pro
    config.module
        .rule('js')
        .test(/\.jsx?$/)
        .exclude
        .add(resolve('src/libs/iview-pro'))
        .end();
    // 使用 iView Loader
    config.module
        .rule('vue')
        .test(/\.vue$/)
        .use('iview-loader')
        .loader('iview-loader')
        .tap(() => {
          return Setting.iviewLoaderOptions
        })
        .end();
    // markdown
    config.module
        .rule('md')
        .test(/\.md$/)
        .use('text-loader')
        .loader('text-loader')
        .end();
    // 重新设置 alias
    config.resolve.alias
        .set('@api', resolve('src/api'));
    // node
    config.node
        .set('__dirname', true)
        .set('__filename', true);
    // 判断是否需要加入模拟数据
    const entry = config.entry('app');
    if (Setting.isMock) {
      entry
          .add('@/mock')
          .end()
    }
  }
};
